Toro Groundsmaster 360 - Traction Circuit Problems

TractionCircuitProblems
Problem
PossibleCauses
Thetractionresponseissluggish.
•Thetransmissionbypassvalve(s)isopenordamaged.
•Thebrakeisdraggingorbinding.
•Thetransmission-checkvalve,reliefvalve,and/orushing
valveisleaking.
•Thechargepressureislow.
•Thehydraulicuidisverycold.
•Thetransmissionorwheelmotor(s)iswornordamaged.
Note:If1tractioncircuitcomponenthasinternalwearor
damage,itispossiblethattheothertractioncomponents
arealsodamaged.
Neutralisdifculttond.
•Theexternalcontrollinkageisincorrectlyadjusted,
disconnected,binding,ordamaged.
•Theoriceinthetransmission-checkvalve(s)isplugged.
•Thetransmissioniswornordamaged.
Notractionexistsineitherdirectionandtheenginespeed
remainsconstant.
•Thehydraulic-uidlevelinthehydraulictankislow.
•Thetransmissionbypassvalvesareopen.
•Thechargepressureislow.
•Theengineywheelcouplingisdamaged.
•Thetransmissionorwheelmotor(s)iswornordamaged.
Note:If1tractioncircuitcomponenthasinternalwearor
damage,itispossiblethattheothertractioncomponents
arealsodamaged.
Thewheelmotordoesnotturnandtheenginespeed
reduceswhenthetractionpedalispressed.
•Thetransmissionbypassvalve(s)isopen.
•Thetransmissionorwheelmotoriswornordamaged.
Note:If1tractioncircuitcomponenthasinternalwearor
damage,itispossiblethattheothertractioncomponents
arealsodamaged.
ThewheelmotordoesnotholdloadintheNEUTRALposition.
Note:Themachinemaynotbecompletelystationaryif
parkedonaninclinewithouttheparkingbrakeengaged.
•Themake-upuidfromthechargepumpisnotavailable.
•Thecheckvalvesinthetransmissionaredamaged.
•Thevalveplate(s)inthetransmissioniswornordamaged.
•Thewheelmotoriswornordamaged.
•ThePD1orPD2cartridgeinthetractionmanifoldisleaking
ordamaged.
•Thecylinderblockassemblyinthetransmissionisworn
ordamaged.
•Theexternalneutrallinkagesareoutofadjustment.
Groundsmaster360
Page4–35
HydraulicSystem:Troubleshooting
16225SLRevC